How is bass something that we can audibly hear and also physically feel?
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Sound waves, as you likely know, cause things to vibrate. When we ‘hear’ things, it is our eardrum vibrating. Now, our eardrum evolved to vibrate at many many frequencies, allowing our brains to interpret a large spectrum of frequencies. However, the rest of our body vibrates at certain frequencies too. I don’t know exact numbers but bass tones, which are low frequencies, come very close to the ideal frequency for vibrating other parts of our body. In other words, we ‘feel’ the sound in addition to hearing it because the sound waves vibrate other parts of us, not just our eardrums. Technically, we could ‘feel’ any frequency if it is loud enough, but low frequencies are able to vibrate our skin much easier than high frequencies, and high frequencies loud enough for us to ‘feel’ them would likely destroy our eardrums.
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